The diaspora doesn't even live in Iran. The only role Pahlavi and diaspora are playing are as CIA / Mossad props for a PR campaign to convince the Western public that Iranians want to be bombed and liberated.
We saw the same PR campaign utilizing some Iraqi diaspora before the 2003 American invasion of Iraq. Same promises of how easy it would be , oil money will quickly rebuild everything and Iraq would re emerge as a democracy tightly aligned with the US and Israel.
I would say you can see similar script of dancing Venezuelans on TV screens celebrating the so-called liberation of Venezuela.
All artificial movements.